Home / 76,013.23-104,872.65-49,189.66

Finding the Fourth Proportional to 76,013.23, 104,872.65 and 49,189.66

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Solution

The fourth proportional to 76,013.23, 104,872.65 and 49,189.66 is: 67,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,013.23 : 104,872.65 = 49,189.66 : x
  2. Step 2: Convert to fraction form
    76,013.23/104,872.65 = 49,189.66/x
  3. Step 3: Cross multiply
    76,013.23x = 104,872.65 × 49,189.66
  4. Step 4: Simplify right side
    76,013.23x = 5,158,649,996.80
  5. Step 5: Solve for x
    x = 5,158,649,996.80/76,013.23
  6. Step 6: Final answer
    x = 67,865.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.